Explanation:



(a) of systems of mating in livestock management
Stud/hand mating: This invlolves keeping a proven sire in a study where any dam on heat is brought for mating and there after the dam is taken away
Pen mating: A group of female animals on heat are brought in the male's pen for mating Or Pen mating involves one male and several female farm animals
Flock/pasture mating: This is a system in which both the sires and dame are allowed to move together and mate freely
(b) Drawing and labelling of the digestive tract of a hen

(c) Reasons why ornamental plants are important
- Used to beautify the environment
- Used in landscaping
- Used to demarcate boundaries/fencing
- Serve as wind break/shelter belt
- Source of income
- Source of employment
- Used in expressing affection/love e.g. flower
- Promote tourism
- Used for making avenues
- Used for educational research purposes
- Used for bouquets, garlands, wreaths etc.
- The flowers of some ornamental plants are used for preparation of dyes
- Some ornamental plants produce fragrance which gives pleasure to people
- Help to reduce night blur on major roads to prevent accidents in the night
- Leguminous ornamental plants fix nitrogen into the soil
- Some ornamental plants are edible/used as food by humans/animals
- Used for visual screening/concealing views to provide privacy
- Some have medicinal value
- They provide shade
- Source of foreign exchange/revenue to the government through taxation
- Reduce noise pollution